Plants named in 1801

The peach (Prunus persica) is a deciduous tree that bears edible juicy fruits with various characteristics. Most are simply called peaches, while the glossy-skinned, non-fuzzy varieties are called nectarines. Though from the same species, they are regarded commercially as different fruits. The tree is regarded as handsome and is planted in gardens for its springtime blooms in addition to fruit production. It is relatively short lived, usually not exceeding twenty years of age. Peaches were first domesticated and cultivated in China during the Neolithic period. The specific name persica refers

The almond (Prunus amygdalus, syn. Prunus dulcis (Mill.) D.A.Webb, nom. illeg. non Prunus dulcis Rouchy) is a species of tree from the genus Prunus. Along with the peach, it is classified in the subgenus Amygdalus, distinguished from the other subgenera by corrugations on the woody shell (endocarp) surrounding the seed. The fruit of the almond is a drupe, consisting of an outer hull and a hard shell with the seed, which is not a true nut. Shelling almonds refers to removing the shell to reveal the seed. Almonds are sold shelled or unshelled. Blanched almonds are unshelled almonds that have

Abacá ( ah-bə-KAH; Filipino: abaka [ɐbɐˈka]), also known as Manila hemp, is a species of banana, Musa textilis, endemic to the Philippines. The plant grows to 13–22 feet (4.0–6.7 m), and averages about 12 feet (3.7 m). The plant has great economic importance, being harvested for its fiber extracted from the leaf-stems. The lustrous fiber is traditionally hand-loomed into various indigenous textiles (abaca cloth or medriñaque) in the Philippines. They are still featured prominently as the traditional material of the barong tagalog, the national male attire of the Philippines, as well as in

Botrychium is a genus of ferns, seedless vascular plants in the family Ophioglossaceae. Botrychium species are known as moonworts. They are small, with fleshy roots, and reproduce by spores shed into the air. One part of the leaf, the trophophore, is sterile and fernlike; the other, the sporophore, is fertile and carries the clusters of sporangia or spore cases. Some species only occasionally emerge above ground and gain most of their nourishment from an association with mycorrhizal fungi.

Polytrichum commune (also known as common haircap, great golden maidenhair, great goldilocks, common haircap moss, or common hair moss) is a species of moss found in many regions with high humidity and rainfall. The species can be exceptionally tall for a moss with stems often exceeding 30 cm (12 in) and rarely reaching 70 cm (27.5 in), but it is most commonly found at shorter lengths of 5 to 10 cm (2 to 4 in). It is widely distributed throughout temperate and boreal latitudes in the Northern Hemisphere and also found in Mexico, several Pacific Islands including New Zealand, and also in

Polytrichum is a genus of mosses — commonly called haircap moss or hair moss — which contains approximately 70 species that have a cosmopolitan distribution. The genus Polytrichum has a number of closely related sporophytic characters. The scientific name is derived from the Ancient Greek words polys, meaning "many", and thrix, meaning "hair". This name was used in ancient times to refer to plants with fine, hairlike parts, including mosses, but this application specifically refers to the hairy calyptras found on young sporophytes. A similar naming related to hair appears in Old Norse, haddr

Botrychium lunaria is a species of fern in the family Ophioglossaceae known by the common name moonwort or common moonwort. It is the most widely distributed moonwort, growing throughout the Northern Hemisphere across Eurasia and from Alaska to Greenland, as well as temperate parts of the Southern Hemisphere.

Quercus infectoria or the Aleppo oak is a species of oak well known for producing galls (called manjakani in Malaysia, majuphal in India) that have been traditionally used for centuries in Asia medicinally while also used in softening leather and in making black dye and ink.

Quercus macrocarpa, the bur oak or burr oak, is a species of oak tree native to central and eastern North America. It is in the white oak section, Quercus sect. Quercus, and is also called mossycup oak, mossycup white oak, or scrub oak. The acorns are the largest of any North American oak (thus the species name macrocarpa, from Ancient Greek μακρός makrós "large" and καρπός karpós "fruit"), and are important food for wildlife.

Huperzia is a genus of lycophyte plants, sometimes known as the firmosses or fir clubmosses; the Flora of North America calls them gemma fir-mosses. This genus was originally included in the related genus Lycopodium, from which it differs in having undifferentiated sporangial leaves, and the sporangia not formed into apical cones. The common name firmoss, used for some of the north temperate species, refers to their superficial resemblance to branches of fir (Abies), a conifer. As of 2020, two very different circumscriptions of the genus were in use. In the Pteridophyte Phylogeny Group

Quercus falcata, also called southern red oak, spanish oak, bottomland red oak or three-lobed red oak is an oak (part of the genus Quercus). Native to the Southern United States, it gets its name the "Spanish oak" as these are the areas of early Spanish colonies, while "southern red oak" comes from both its range and leaf color during late summer and fall. The southern red oak is a deciduous angiosperm, so has leaves that die after each growing period and come back in the next period of growth.

Quercus bicolor, the swamp white oak, is a North American species of medium-sized trees in the beech family. It is a common element of America's north central and northeastern mixed forests. It can survive in a variety of habitats. It forms hybrids with bur oak where they occur together in the wild.

Prunus tenella, the dwarf Russian almond, is a species of deciduous shrub in the genus Prunus, native to steppes of Eastern Europe and Western Siberia, as well as dry open sites of Caucasus, Western and Central Asia. It yields small almond-like hairy fruits with characteristic flavor. It grows to 1.5 m (5 ft) and is a popular ornamental plant in cold temperate regions, valued for its profuse spring blossom and exceptional winter hardiness. It was formerly included in Prunus sect. Amygdalus, but molecular phylogenetic studies indicate it is closely related to bush cherries, apricots and plums,

Quercus libani, the Lebanon oak, is a species of oak native to the eastern Mediterranean in western Asia, including in western Syria, Lebanon, eastern Turkey, and northern Iraq and Iran.

Umbilicus is a genus of over ninety species of flowering plants in the family Crassulaceae. Many of its species have been given synonyms under different genera such as Rosularia, Cotyledon, and Chiastophyllum. However, those that remain in Umbilicus are listed below: Umbilicus chloranthus (called green Venus' navel) Umbilicus chrysanthus (called Venus' navel) Umbilicus erectus (called reniform Venus' navel) Umbilicus horizontalis (called horizontal navelwort) Umbilicus intermedius (called intermediate navelwort) Umbilicus oppositifolius (called gold drop) (also as Chiastophyllum o.) Umbilicus

Lygodium (climbing fern) is a genus of about 40 species of ferns, native to tropical regions across the world, with a few temperate species in eastern Asia and eastern North America. It is the sole genus in the family Lygodiaceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). Alternatively, the genus may be placed as the only genus in the subfamily Lygodioideae of a more broadly defined family Schizaeaceae, the family placement used in Plants of the World Online as of November 2019. Per recent molecular evidence, Lygodiaceae is thought to have diverged relatively early

Carex appropinquata, known as fibrous tussock-sedge, is a species of flowering plant in the family Cyperaceae, commonly known as sedges.

Buxbaumia (bug moss, bug-on-a-stick, humpbacked elves, or elf-cap moss) is a genus of twelve species of moss (Bryophyta). It was first named in 1742 by Albrecht von Haller and later brought into modern botanical nomenclature in 1801 by Johann Hedwig to commemorate Johann Christian Buxbaum, a German physician and botanist who discovered the moss in 1712 at the mouth of the Volga River. The moss is microscopic for most of its existence, and plants are noticeable only after they begin to produce their reproductive structures. The asymmetrical spore capsule has a distinctive shape and structure,

Psilotum is a genus of fern-like vascular plants. It is one of two genera in the family Psilotaceae commonly known as whisk ferns, the other being Tmesipteris. Plants in these two genera were once thought to be descended from the earliest surviving vascular plants, but more recent phylogenies place them as basal ferns, as a sister group to Ophioglossales. They lack true roots, and leaves are very reduced, the stems being the organs containing photosynthetic and conducting tissue. There are only two species in Psilotum and a hybrid between the two. They differ from those in Tmesipteris in

Bryum is a genus of mosses in the family Bryaceae. It was considered the largest genus of mosses, in terms of the number of species (over 1000), until it was split into three separate genera in a 2005 publication. As of 2013, the classification of both Bryum and the family Bryaceae to which it belongs underwent significant changes based on DNA studies.

Zoysia (UK: ; US: , -, -, -) is a genus of creeping grasses widespread across much of Asia and Australia, as well as various islands in the Pacific. These species, commonly called zoysia or zoysiagrass, are found in coastal areas or grasslands. It is a popular choice for fairways and teeing areas at golf courses. The genus is named after the Slovenian botanist Karl von Zois (1756–1799).

Polytrichum juniperinum, commonly known as juniper haircap or juniper polytrichum moss, is an evergreen and perennial species of moss that is widely distributed, growing on every continent including Antarctica.

Jacobaea aquatica or Senecio aquaticus, the water ragwort or marsh ragwort, is a plant of the family Asteraceae. It is a perennial or biennial plant: young plants form a rosette near the ground, eventually producing a taller flowering shoot with many bright yellow flower heads, each with prominent ray florets. It grows in damp, grazed grassland, especially where there has been some disturbance.

Hypnum cupressiforme, the cypress-leaved plaitmoss or hypnum moss, is a common and widespread species of moss belonging to the genus Hypnum. It is found in all continents except Antarctica and occurs in a wide variety of habitats and climatic zones. It typically grows on tree trunks, logs, walls, rocks and other surfaces. It prefers acidic environments and is fairly tolerant of pollution. It was formerly used as a filling for pillows and mattresses; the association with sleep is the origin of the genus name Hypnum (from Greek Hypnos). This small to medium-sized moss is about 2–10 cm long. It

Bryum argenteum, the silvergreen bryum moss or silvery thread moss, is a species of moss in the family Bryaceae. It is one of the most common mosses of urban areas and can be easily recognized without a microscope.

Babiana is a genus of geophytes in the family Iridaceae with 93 recognized species as of March 2022. The leaves consist of a stalk and a blade that are at an angle to each other. The leaf blades are entire, laterally flattened and pleated, and often hairy. Each individual flower is subtended by two hairy or smooth bracts that are green in most species. The outer bract is often the largest of the two. In most species the bracts have a dry, brown tip, but in a few species it is entirely green or entirely dry when flowering or the outer bract is translucent and has a papery texture. The inner

Quercus imbricaria, the shingle oak, is a deciduous tree in the red oak group of oaks. It is native primarily to the Midwestern and Upper South regions of North America.

The coast live oak (Quercus agrifolia), also called the California live oak, is a live oak (an evergreen oak) native to the California Floristic Province. Live oaks are so-called because they keep living leaves on the tree all year, adding young leaves and shedding dead leaves simultaneously rather than dropping dead leaves en masse in the autumn like a true deciduous tree. Coast live oaks may be shrubby, depending on age and growing location, but is generally a medium-sized tree. It grows west of the Sierra Nevada mountain range from Mendocino County, California, south to northern Baja

Typha laxmannii, the graceful cattail, is a wetland plant species, widespread across Europe and Asia. Typha laxmannii is not as tall as many of the other species in the genus, rarely more than 130 cm high. A noticeable space separates the staminate (male) flowers from the pistillate (female) ones.

Orthotrichum is a genus of moss in the family Orthotrichaceae. It is distributed throughout the world. There are about 125 species in the genus. Species include: Orthotrichum affine Orthotrichum alpestre Orthotrichum anomalum Orthotrichum bartramii – Bartram's orthotrichum moss Orthotrichum bolanderi – Bolander's orthotrichum moss Orthotrichum casasianum Orthotrichum consimile Orthotrichum crassifolium Hook.f. & Wilson Orthotrichum cupulatum Orthotrichum diaphanum Orthotrichum epapillosum Orthotrichum exiguum Orthotrichum fenestratum Orthotrichum flowersii Orthotrichum gymnostomum